246 THE DISTRIBUTION OF HEPATICZ IN SCOTLAND 
(Lillie). W. Sutherland :—Forsinard, f (Lillie); between 
Durness and Tongue (Lillie). 
OrKNEY.—Hoy, P (Lillie). 
SHETLAND.— Yell (Sim) ; Unst (Sim). 
BLEPHAROSTOMA Dum. 
BLEPHAROSTOMA TRICHOPHYLLUM (L.) Dum. 
Generally distributed in the subalpine and alpine regions 
from Dumfries to Shetland. It is very rare in those dis- 
tricts where the rock does not appear on the surface. This 
applies especially to large tracts in the Southern Uplands. 
It is uncommon as a whole in the West Lowlands, though 
frequent in some subalpine glens. Is very rare in the 
Upper Clyde valley, where little rock is to be seen. It is 
rare in the East Lowlands, and with a few exceptions is 
confined to the upper reaches of the Tweed and its tribu- 
taries. It has only been found to be frequent in Tweeds- 
muir above 900-1000 ft. alt. It is rare in Fife, but is 
frequent throughout the hilly regions of the Highland 
provinces and is common in many districts. It does not 
appear to have any special distribution as long as moist 
rocky banks are present. It is common on schistose 
formations, occurs also on limestone, but it appears to be 
less common on granite. It is frequent in the Inner 
Hebrides, but has not yet been found in the Outer islands 
or in Orkney, and it appears to be uncommon in Shetland. 
In several of our islands there is a want of moist rocky 
banks, in which these species and some others are usually 
to be found. Although most common in the subalpine 
region, it is also rather common on the higher ground, and 
ascends to 4000 ft. alt. in Mid Perth. It has not been 
recorded above 2100 ft. alt. in the West Highlands. 
Grows in light-green, compact tufts, or more commonly in 
mixture, and is occasionally found on stumps as well as on 
banks. Fruit, mature from April to July, is almost confined 
to the compact states, where it is frequent, and sometimes 
abundant. 
Near Glasgow, 1836 (Lyon). 
